XF4, SysRq, VT, mouse buttons, Keymaps and all that

Gabriel Paubert paubert at iram.es
Wed Apr 18 23:39:07 EST 2001

On Wed, 18 Apr 2001, Iain Sandoe wrote:

> >>I guess we could use <CNTL>-power as the SysRq modifier - but it starts to
> >>become a little unwieldy - because you need to hold down three keys to get
> >>the SysRq action (well, you do now as it happens)...
> >>
> >>so, perhaps, <CNTL>-<Power>-k etc.
> >>
> >>thoughts?
> >
> > On my Apple Adjustable keyboard, control and power are about as far away
> > from eachother as you can get and still be on the same keyboard. Not
> > exactly 2-of-3-key-combo material. I don't have very small hands, but even
> > on my AppleDesign, it's a bit of a stretch.
> yeah, on mine too - which is why I was originally attracted to just <power>
> as the modifier.
> > Also, what happens if someone wants to hook up a PC USB keyboard to their
> > mac? Obviously not generating an NMI is a given, but no access to SAK is
> > avoidable.
> Apparently, some Apple keyboards don't have a <power> key either.

Unless I missed it there is no power key on the keyboard delivered with my
2001 G4/466 (109 keys including volume/mute/media-eject, but nothing
looking like a power key.)

> Anyway the SysRq key for USB must be handled somewhere else - I'm looking at
> the mac_hid/adb/mac_keyb code which is specific to adb-based machines IIUC.
> >(Also can't forget non-mac PPCs)
> Which must handle it in their hid section... depending on whether they have
> serial or USB (or something special).

If somebocy is going to touch the input layer, I would like the raw
keyboard mode to stay raw. Right now in some configuration combinations
there is no difference between raw and medium-raw (used by X). They both
return medium-raw keycodes, I can't get to the scancodes.


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